Weighing-scale.



No. 743,089. PATENTED NOV. 3, 1903.- M. F. KNOX. WEIGHING SCALE.

APPLICATION FILED FEB. 4. 1903. NO MODEL. 4 SHEETS-SHEET 1.

PATENTED NOV. 3, 1903'. M. F. KNOX. WEIGHING SCALE. APPLIOATIOK FILED FEB. 4, 1903.

N0 MODEL.

M. P. KNOX.

WEIGHING SCALE.

APPLICATION FILED FEB. 4. 1903 NO MODEL.

PATENTED NOV. 3, 1903.

4 SHEETS-SHEET 3.

No. 743,089. PATENTED NOV. 3, l903 M, F. KNOX.

WEIGHING SCALE:

APPLICATION FILED FEB. 4. 1903. N0 MODEL.

4 SHEETS-SHEET l.

To aZZ whom it may concern.-

. Patented November 3,

PATENT omen.

MATTHIAS F. KNOX, 6F NA$E ELLE, FENNESSEE.

f ,SPECIFICATION forming part of Letters latent No. 743,089, dated November a, 19cc. i i i 7 Application filed February 4, 1908. Serial No: 141,807. (No model.)

l 3e it known that I, MATTHIAS F. Knox, a c t zen of the United States, residing at Nashville, 1n the county of Davidson and State of Tennessee, have invented certain new and useful Improvements in W'eighing-Scales, of

wlii'ch t he following is a specification, reference being had therein to the accompanying drawings.

' This invention relates to improvements in weighing-scales, and has for its primary ob ject the provision of a scale which will be as compact as possible and highly effective in operation.

To this end the invention contemplates opcrating mechanism comprisinglever-connect- 'lng-instrumentalities which will have the mechanism and the beam or panel, whereby the beam or panel will be devoid of projections throughout its entire extent, thereby presenting no obstruction to the shifting of the poise thereover from end to end of the same, besides enlarging the surface area utilized for indicators or computatiomfignres.

To facilitate a clear understanding of the invention, 1 have illustrated in the accompanying drawings, forming part hereof, preferable embodiments of the invention, and the novel details in the construction and arrangement of the several parts of the same will be apparent upon an inspection of the detailed description hereinafter when read in connection with said drawings.

In the embodiments disclosed an angle-lever interpositioned between the scale pan or platform rodand the lower innermost corner of the beam is utilized, said lever being pivoted at its elbow to a portion of ihe scaleframeand the respective arms of the lever being as long as possible consistent with the arrangements shown, whereby the leverage is as great as p0ssible,effecting unusual sensitiveness of the movable operating parts. It will also be seen that a bearing-is interposed between the upper end of the scale-standard and the lower bar of the panel or beam frame, sothat the said frame may be rotated in a horizontal direction to any desired position for inspection or to bring to view either the front or reverse sides of the beams or panels.

In thedraWing-s, Figure 1 is an elevation of a scale made according to the present invention. 2 is an enlarged detail view of the angle-lever and the iinn1ediately-associated parts, also the bearing, parts being shown in section. Fig. 3 adetail edge eievation of the connection between the upper arm of the angle-lever and the lower innermost corner of the beam. Fig. dis a section on the line m a; of Fig. 8. Fig. 5 is an elevation, portions being shown in section, of a second embodiment of the inven ti0n,showing a somewhat-modified arrangement. Fig. 6 is a detail thereof. Fig. '7 is a plan viewof the platform of the construction shown in Fig. 5, indicating the manner of connecting the anglelever to said platform. Fig. 8 is a sectional View on the line 7 '7 of Fig. 7. Figs. 9 and 10 are detaii views of swivel connections employed in rotary-beam constructions, and Fig. 11 is a detail of a slot-and-pin connection.

Referring more specifically to the drawings, wherein like reference characters will refer to corresponding parts in the several views, A desi nates a scale-base having the nsnal piatf "so orpan l3 and hollow upright or ard C at one end thereof, through which passes .the connectingrod D, operatively associated with. the platform or pan in any ordinary or desired manner.

denotes the beam or panel portion of the scale, the same being shown in the present instance as comprising a plurality of superposed slightly-separated panels e, on both surfaces of which are arranged any desired computation-figures or indicator Oilt'tliiChfiWs. The edges of the beam are connected to rin annit bycross-barse,saidunitbeinginonnted to swing vertically by pivoting theinner crossbar at a point centrally located intermediate its ends to the inner vertically-disposed arm F of a beam or panel frame, the opposite parallel arm of which is indicated at F and the lower connecting portion at F. The inner cross-bar e projects downwardly and outwardly for a short distance at its lower end, and extension is pivotaily secured. the

2 Manes upper arm G of an enlarged angle-lever, the pivotal connection therebetween comprising a headed pin g, passing through slotted reduced portions 9 on the lever-arm and the extension, Fig. 11. The aforesaid angle-lever is pivoted at its elbow at G to a lug g on the arm F of the panel-frame, and the lower arm G thereof extends inwardly in horizontal direction and connects at its end, through the medium of a pivoted link d,with the hooked end d of the rod D. The arm G of the angle-lever supports an adjustable scalepan weight 11, slidable upon the rod 7t, secured to said arm, while the lower arm G thereof carries the adjusting-weight H, having a threaded adjustment upon the rod it, connected to an ear h, depending from said arm G.

From the foregoing description it will be apparent that by the interposition of the angle-lever between the rod G and the crossbar of the panel unit the greatest possible distance between the bearings of the operating parts is enabled, thereby obtaining the desirable characteristics incident to the utilization of long levers, notably that of marked sensitiveness.

The bearing upon which the panel-frame may be rotated will now be described. The upper end of the upright or standard is screwthreaded att' for attachment to a corresponding interiorly-tln'eaded portion of a hollow extension I, the same havinga shoulder t", arranged to rest upon the upper surface of the standard. The tubular portion t'" passes through a flattened portion f of the lower connecting member of the panel-frame and is secured to said flattened portion by means of a not H and washer 70, Fig. 2. lower end of the tubular portion i the extension 1 has a projecting rim L, in the upper surface of which is formed a raceway Z for the reception of balls Z,which constitute the hearing for the panel-frame and upon which said frame may be rotated to any desired position in a horizontal direction. The rod 1) may be provided with any convenient swivel connection at either its upper or lower end, so as not to interfere with the turning of the beam or panel-for instance, that shown in Figs. 9 and 10.

In the modified construction (illustrated in Figs. 5 and 6) the angle-lever (designated M in this instance) is broughtin closer relation to the scale pan orplatform B',the samehaving its lower arm operatively associated with the pan or platform rather than beingindirectly associatedtherewith, as in the other figures, when the connectingrod D is employed. The connection between the lower arm of the angle-lever in this instance and the pan or platform may be through the medium of any desirable equalizing-levers, that shown, Figs. 7 and 8, comprising the V-shaped lever 2 and Y-shaped lever 3, yieldably connected by a pin 5, said levers being secured to the scale At the structure at the corners thereof by links 4 and supporting the pan or platform upon knife-edge bearings 7. The lower arm of the angle-lever is linked at 6 to the tailpiece of the Y-shaped lever 3. It is also to be noted that in this modification the angle-lever is inclosed within toe base A and standard C, said lever being pivoted at m at a point approximately the juncture of said base with said upright. To operatively connect the upper end of the angle-lever with the depending extension N of the panel member corresponding to the extension of the connecting cross-bar c in the preceding description, I provide a link It, having the knife-edges 1", said. link loosely embracing the ends m and n of the arm M and extension N and engaging the notches m and n therein. The panelframe in this instance comprises the bar F, having the inner upwardly-curved extension F", to the end of which the panel member is pivoted at f. The panel member comprises the beams e e, siidable upon which are the poises O, and the connecting member 6, carrying the stem or projecting portion p guided in its movement. by the vertical portion P of the panel-frame in the ordinary In 3.111 L161.

In both forms of the invention the poiscs O' are alike, each comprising a member upon the opposite surface of the panel arranged to register with the computation-figures or indicators thereon and top and bottom connecting-plates, the registering members being also provided with pointers orfingers, if desired. While this peculiar construction of poise may possess novel features, Ishall not herein claim the same, because it is thought thatit should more properly form the subject-matter of a separate application.

To maintain the beam or panel portion of the scale stationary when the instrument is out of service, a catch P is pivoted at p to "the end of the arm F", said catch having inwardly-directed fingers 1), arranged to .be thrown over a similar finger on the outermost erossbar e of the panel-section and arranged to extend between the lingers of the catch P.

While the various details of the construction have been specifically defined herein, it is to be understood thatit is not my intention to be limited in an interpretation as to the scope of the invention to any such details except in so far they may be definitely in cluded in the appended claims, because many minor changes and alterations may be made without departing in the least from the spirit of the invention.

Having thus described the invention, what is claimed as new, and desired to be secured by Letters Patent, is

1. In aweighingscale, the combination with a standard, a pan and beam, of operating instrumentalities between the pan and beam.

including an angle-lever arranged above the standard onearmof which is operatively associatedwith thebeam and the opposite arm of which is operativey associated with the pan, anda pivot-bearing for said an gle-lever; substantially as described. 1

2. In a weighingscale, the combination with a pan and beam, of operating instrumentalitie's therebetween including an angle-levcr air-ranged above the pan one arm of which. is operatively associatedwith the beam and the opposite arm of which is operatively associated with the pan, a pivot for said angle-lever, and an adjusting-weight carried by one arm of the angle-lever; substantially as described.

3. In a weighing-scale, the combination with a pan and beam, of operating instrumentalities therebetwcen including an angle-lever one arm of which is operatively associated with the beam and the opposite arm of which is operatively associated with the pan, a pivot for said angle-lever, a scale-pan weight carried bysaid angle-lever, and an auxiliary adjusting-weight also carried by said angle-lever; substantially as described.

4. In aweighing-scale, the combination with a pan and beam, of operating instrumentalities therebetween including an angledever one arm of which is operatively associated with the beam and the opposite arm of which is operatively associated with the pan, a pivot for said angle-lever, a scale-pan weight carried by one arm of said angle-lever, and an auxiliary adjusting-weight carried by the other arm of said angle-lever; substantially as described.

5. In a weighi ng-scale, the combination with a pan and beam, of operating instrumentalities therebetween including an angle-lever one arm of which is operatively associated with the pan, a pivot for said angle-lever, and a pivot connection between the other end of the angle-lever and the beam, said connection comprising adjacent reduced portions on the beam and lever-arm, and a pin passing through said reduced portions; substantially as described.

6. In a weighingscale,the combination with a pan and beam, of. operating instrumentalities therebetween including an angle-lever one arm of which is operatively associated with the pan, a pivot for said angle-lever, and a pivot connection between the other end of the angle-lever and the beam, said connection comprising adjacent slotted reduced portions on the beam and lever-arm, and a pin conmeeting said reduced portions and entering the slots therein; substantially as described;

, 7'; In a weighing-scale,the combination with a pan and beam, of operating instrumentalities therebetween including an angle lcver one arm of which is operatively associated with the pan, the opposite end of said lever extending in an approximately vertical direction, a pivot for said angle-lever, and a pivotal connection between said opposite end of the angle-lever and the described.

8. In a weighing-scale,thecombi nation with a pan and beam, of operating instrumented ties therebetween including an angledcver one arm of which is approximately horizontally disposed and operatively associated with the pan, the opposite end of said lever being approximately verticali y disposed, a pivot for said angle-lever, and a pivotal connection be tween the vertically'disposed end of the an gle-lever and the beam; substantially as described.

9. In a weighing-scale,th e combination with a pan and beam, of operating instrumentalities therebetween including an angle-lever one arm of which is operatively associated with the pan, a pivot for said angle-lever, projecting portion at the edge of the beam, and a pivot connecting said projecting portion directly to the other end of the angle-lever; substantially as described.

10. In a weighing-scale, the combination with a pan and beam, of operating instrumentalities therebetween including an angle-la ver one arm of which is operatively associ ated with the pan, a pivot for said angle-la ver, a depending projection at the edge of the beam, and a pivot connecting said depending projection directly to the other end of the angle-lever; substantially as described.

11. In a weighing-scale, the combination with a pan and beam, of operating instrumentalities therebetween inclnding an angle-1e ver having an approximately vertically disposed arm and an approximately horizontally disposed arm, the horizontal arm of said lever being operatively associated with the pan, a pivot-bearing for said angle-lever, and a movable connection between. the verticalarms of the angle-lever and the beam; substantially as described.

substantially as 12. In a weighing-scale, the combination with a pan and beam, ot' operating instrumentalities therebetween including an angle-.lover one arm of which is operatively associated with the beam, a depending rod the lower portion of said rod being operatively associated with the pan, and means for attaching the upper end of said rod. to the opposite arm of the an gle-lever; snbstan tiall y as described.

ICC

. tive a beam-frame comprising a vet-t posed arm and a lower horizontaiiy-dispoed arm, and a pivota connection between said. the angle-lever,

verticailg disposed arm and snbstantialiy as described.

with a pan and be talities th rebeiw" ver one arm of a hich i. ated with the pan which is operatively associated n .th the beam, a beam-frame comprising verticaily-disposed arm and lower arm, a pivoiai connection between the vertically-disposed arm of the frame and the angie-lever, and an adjnsting weight supported from (he under side of the lower arm of said lever; substantially as described.

16. In a weighingscaie, the combination with a pivoted beam, operating instrumentalities therefor, and means tor retaining the beam in an inactive position comprising projection thereon, and a catch pivoted swing laterallyof the beam and arranged. codperate with said projection; substanti:- 21y as described.

17. In a weighing-scale, the combination with a beam pivotally mounted at one end, operating instrumentalities therefor, and means for retaining the beam 1: an inactive position comprising a projection on the beam at the end thereofopposite its pi voted end,and a catch pivoted to swing lateraiiy of the beam and arranged to codperate with said projection; substantially as described.

18. In a weigl'iing-scale, the combination with a pivoted beam, operating instrumentalities therefor, and means for retaining the beam in an inactive position comprising a projection thereon, and a pivoted. catch having separated portions arranged to cooperate with the projection on the beam; substantially as described.

19. in a weighing-scale, the combination with a beam pivotally mounted at one end, operating instrumentalities therefor, and means for retaining the beam in an inactive position comprising a projection on the beam at the end thereof opposite its pivoted end, and a pivoted catch having separated projections arranged to cooperate with the pro; jection on the beam or panel; substantially as described.

20. In a Weighing-scale, the combination with a pan and beam, of operating instrumentalities therebetween including an angle-lever, and a beam-frame to which the beam and the angle-lever are pivoted, one arm of said angle-lever being operatively associated with the beam and the opposite arm being operaassociated with the pan. in a weighing-scale, the combination J3EE and pivoted beam, of a support veaose for said pivoted beam, and operating instru- -i.nentalities between said pan and. beam including an angle-lever pivoted to the beamsnpport, one arm oi said angie-iawer being operativcly associa d with one end of said beam and the opposite arm being operativcly associated with the pan.

22, in. a Weighing-scale, the combination with pan and beam, of operati g instrumentalitics therebetween including pivoted angiedever having one arm projecting npt-vardly relative to the n and operatively associated with the beam, 1 another term operatively associated with the pan.

in a Weighing-scale, the combination with pan. and beam, of a beam-frame having a vertically-disposed arm and a lower arm, and operating instrntnentalities between the pan and beam including a pivoted angie-lever arranged. Within. the beam-frame, one arm of said. lever being operatively associated. with the beam and the opposite arm thereof being operatively associated with the pan.

2;. in a weighing-scale, the combination with pan and beam, of a bra iii-frame having a verticallydinposcd are and a lower arm, and operating instrum talities between the pan and beam. including an angle-lever arranged within the beam-frame, one arm of said lever being ormvatively associated with the beam, a depending rod operatively associated with the pan, and movable connection between the upper portion of said depending rod and the other arm of the anglelever.

.35. in a weighing-scale, the combination with a pan and beam, of a beam-frame having a vertically-disposed arm and a lower arm, and operating instrumenialities between the pan and beam including an angle-lever arranged within the beam-frame, one arm of said lever being operatively associated with the beam, a depending rod operatively associated with the pan, a movable connection between the upper portion of said depending rod and the other arm of the angleelever, and

an adjusting-weight carried by the anglelever.

26. in a weighing scale, the combination with a pan and beam, of operating instrumentalities therebetween including an angle-lever arranged with. one arm thereof extending longitudinally of the beam, and means connecting the other arm to said beam.

27. in a weighing-scale, the combination with a pan and beam, of operating instrumentalities therebetrveen including an angle-le-- ver arranged with one arm thereof extending longitudinally of and beneath the beam, and means connecting the other arm to said beam.

28. In a weighing-scale, the combination with a pan and beam, of operating instrumentalitics therebetween including an angle-lever arranged within approximately thesaine vertical plane as me beam, said lever having a verticaliy-disposed arm connected to said beam,

29. In a weighing-scale, the combination with a pan and beam, of operating instrumentalities therebetween including an aug1e-1ever arranged within approximately the same 5 Vertical plane as the beam and beneath said beam, said lever having a vertically-disposed arm connected to said beam In testimony whereof I affix my signature in presence of two witnesses.

MATTHIAS'F. KNOX. Witnesses:

CHAS 0. GILBERT, FLOYD L. HARRIS. 

